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HP 7740 desk jet pro error message: print head missing or installed incorrectly

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HP 7740 Deskjet Pro
Microsoft Windows 10 (64-bit)

The problem surfaced when I installed a yellow HP ink cartridge (Walmart purchase) into the printer head carriage. The printer has worked well since I acquired it four years ago. HP 7740 desk jet pro error message: "print head missing or installed incorrectly".  I never disturbed the printer head and certainly didn't remove it. I have been without a printer for two weeks now. I've removed the cartridges and cleaned them several times.  in the process I have moved them out and then in again. I have performed the reset several times and nothing has changed the status of the machine.  I ordered a replacement printhead from HP and it can't be the correct one; got to deal with that now. It has been impossible trying to get to a real person at HP.

HP Support Agent
HP Support Agent
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Welcome to the HP Support Community.


This situation will need some additional support from our internal teams in HP. For that to happen, we will give you additional instructions/information via Private Message.


Please do check your inbox on the forums page for the private message.


If the information I've provided was helpful, give us some reinforcement by clicking the Accepted Solution button, that'll help us and others see that we've got the answers!



Have a great day!

I am an HP Employee

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